import gnu.io.PortInUseException;
import gnu.io.RXTXPort;
import gnu.io.UnsupportedCommOperationException;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.text.NumberFormat;

import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.text.AbstractDocument;

@SuppressWarnings("serial")
public class Console extends JFrame
{	
	public static void main(String args[]) throws PortInUseException, UnsupportedCommOperationException {
		new Console().setVisible(true);
	}

	public Console() throws PortInUseException,
			UnsupportedCommOperationException {

		JPanel content = new JPanel();
		content.setLayout(new BorderLayout());

		data = new JTextArea();	
		data.setRows(20);
			
		((AbstractDocument) data.getDocument()).setDocumentFilter(new ValidCharacterCounter(this));

		JPanel bottom = new JPanel();
		
		bottom.setLayout(new BoxLayout(bottom, BoxLayout.Y_AXIS));
		
		JPanel axis = new JPanel();
		JPanel status = new JPanel();
		
		movementType = new JComboBox(new String[]{"Rapid", "Vector"});
		
		NumberFormat format = NumberFormat.getIntegerInstance();
		format.setMaximumIntegerDigits(5);
		format.setMaximumFractionDigits(0);
		format.setParseIntegerOnly(true);
		
		xAxis = new JFormattedTextField(format);
		xAxis.setColumns(6);
		yAxis = new JFormattedTextField(format);
		yAxis.setColumns(6);
		zAxis = new JFormattedTextField(format);
		zAxis.setColumns(6);
		
		JButton add = new JButton("Add");
		
		add.addActionListener(new ActionListener() 
			{
				public void actionPerformed(ActionEvent e) {
					//data.append(new Integer(xAxis.getText() + "");										
				}				
			});
		
		axis.add(movementType);
		axis.add(xAxis);
		axis.add(yAxis);
		axis.add(zAxis);
				
		axis.add(add);
		
		bottom.add(axis);
		
		charsLeft = new JLabel("Characters left: 512");
		checksum = new JLabel("Checksum: 0x0000");
		JButton send = new JButton("Send");

		status.add(charsLeft);
		status.add(checksum);		
		status.add(send);
		
		bottom.add(status);
		
		content.add(bottom, BorderLayout.SOUTH);

		content.add(data, BorderLayout.CENTER);

		send.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				int crc = calculateCRC(data.getText().getBytes());

				checksum.setText("Checksum: 0x"
						+ Integer.toHexString(crc).toUpperCase());

				try {
					sendData(data.getText().getBytes(), crc);
				} catch (IOException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				}
			}
		});

		// openSerialPort();

		// port.close();

		getContentPane().add(content);
		setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
		pack();
	}

	private void openSerialPort() throws PortInUseException,
			UnsupportedCommOperationException {
		port = new RXTXPort("COM1");

		port.setSerialPortParams(57600, RXTXPort.DATABITS_8,
				RXTXPort.STOPBITS_1, RXTXPort.PARITY_NONE);

		InputStream instream = port.getInputStream();
		out = port.getOutputStream();

		in = new BufferedReader(new InputStreamReader(instream));
	}

	private void sendData(byte data[], int crc) throws IOException {
		if (data.length == 0)
			return;
		
		for (int i = 0; i < data.length; i++)
			if (Character.isLetterOrDigit(data[i]))		
				out.write(data[i]);
		
		out.write((crc >> 8) & 0x00FF);
		out.write(crc & 0x00FF);
	}

	private static int calculateCRC(byte data[]) {
		int crc = 0x0;

		for (int i = 0; i < data.length; i++) {
			crc = (crc >> 8) ^ crcTable[(data[i] ^ crc) & 0xFF];
		}

		return crc;
	}
	
	protected void updateCharsRemaining(int charsRemaining)
	{
		charsLeft.setText("Characters left: " + charsRemaining);
	}

	private JTextArea data;
	private JLabel checksum, charsLeft;	
	private JComboBox movementType;
	private JFormattedTextField xAxis, yAxis, zAxis;
	private OutputStream out;
	private BufferedReader in;
	private RXTXPort port;
		
	private static int crcTable[] = new int[] { 
			0x0000, 0xC0C1, 0xC181, 0x0140,
			0xC301, 0x03C0, 0x0280, 0xC241, 0xC601, 0x06C0, 0x0780, 0xC741,
			0x0500, 0xC5C1, 0xC481, 0x0440, 0xCC01, 0x0CC0, 0x0D80, 0xCD41,
			0x0F00, 0xCFC1, 0xCE81, 0x0E40, 0x0A00, 0xCAC1, 0xCB81, 0x0B40,
			0xC901, 0x09C0, 0x0880, 0xC841, 0xD801, 0x18C0, 0x1980, 0xD941,
			0x1B00, 0xDBC1, 0xDA81, 0x1A40, 0x1E00, 0xDEC1, 0xDF81, 0x1F40,
			0xDD01, 0x1DC0, 0x1C80, 0xDC41, 0x1400, 0xD4C1, 0xD581, 0x1540,
			0xD701, 0x17C0, 0x1680, 0xD641, 0xD201, 0x12C0, 0x1380, 0xD341,
			0x1100, 0xD1C1, 0xD081, 0x1040, 0xF001, 0x30C0, 0x3180, 0xF141,
			0x3300, 0xF3C1, 0xF281, 0x3240, 0x3600, 0xF6C1, 0xF781, 0x3740,
			0xF501, 0x35C0, 0x3480, 0xF441, 0x3C00, 0xFCC1, 0xFD81, 0x3D40,
			0xFF01, 0x3FC0, 0x3E80, 0xFE41, 0xFA01, 0x3AC0, 0x3B80, 0xFB41,
			0x3900, 0xF9C1, 0xF881, 0x3840, 0x2800, 0xE8C1, 0xE981, 0x2940,
			0xEB01, 0x2BC0, 0x2A80, 0xEA41, 0xEE01, 0x2EC0, 0x2F80, 0xEF41,
			0x2D00, 0xEDC1, 0xEC81, 0x2C40, 0xE401, 0x24C0, 0x2580, 0xE541,
			0x2700, 0xE7C1, 0xE681, 0x2640, 0x2200, 0xE2C1, 0xE381, 0x2340,
			0xE101, 0x21C0, 0x2080, 0xE041, 0xA001, 0x60C0, 0x6180, 0xA141,
			0x6300, 0xA3C1, 0xA281, 0x6240, 0x6600, 0xA6C1, 0xA781, 0x6740,
			0xA501, 0x65C0, 0x6480, 0xA441, 0x6C00, 0xACC1, 0xAD81, 0x6D40,
			0xAF01, 0x6FC0, 0x6E80, 0xAE41, 0xAA01, 0x6AC0, 0x6B80, 0xAB41,
			0x6900, 0xA9C1, 0xA881, 0x6840, 0x7800, 0xB8C1, 0xB981, 0x7940,
			0xBB01, 0x7BC0, 0x7A80, 0xBA41, 0xBE01, 0x7EC0, 0x7F80, 0xBF41,
			0x7D00, 0xBDC1, 0xBC81, 0x7C40, 0xB401, 0x74C0, 0x7580, 0xB541,
			0x7700, 0xB7C1, 0xB681, 0x7640, 0x7200, 0xB2C1, 0xB381, 0x7340,
			0xB101, 0x71C0, 0x7080, 0xB041, 0x5000, 0x90C1, 0x9181, 0x5140,
			0x9301, 0x53C0, 0x5280, 0x9241, 0x9601, 0x56C0, 0x5780, 0x9741,
			0x5500, 0x95C1, 0x9481, 0x5440, 0x9C01, 0x5CC0, 0x5D80, 0x9D41,
			0x5F00, 0x9FC1, 0x9E81, 0x5E40, 0x5A00, 0x9AC1, 0x9B81, 0x5B40,
			0x9901, 0x59C0, 0x5880, 0x9841, 0x8801, 0x48C0, 0x4980, 0x8941,
			0x4B00, 0x8BC1, 0x8A81, 0x4A40, 0x4E00, 0x8EC1, 0x8F81, 0x4F40,
			0x8D01, 0x4DC0, 0x4C80, 0x8C41, 0x4400, 0x84C1, 0x8581, 0x4540,
			0x8701, 0x47C0, 0x4680, 0x8641, 0x8201, 0x42C0, 0x4380, 0x8341,
			0x4100, 0x81C1, 0x8081, 0x4040 };	
}


